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PCIe 3.1 2.5GBase-T Network Adapter with Intel I225-V / I226-V 2500/1000/100Mbps PCI Express Gigabit Ethernet NIC Card RJ45 LAN Controller for Windows 10/11 with Low Profile Bracket
ULANSeN

ULANSeN PCIe 3.1 2.5GBase-T Network Adapter

Bottom line: The ULANSeN PCIe 3.1 2.5GBase-T Network Adapter ($19.19 on Amazon as of 2026-10-06): Intel I226-V chipset improves error rates and cable stability over the older I225-V; main trade-off: ships as I225-V or I226-V; the older I225-V has weaker long-cable stability.

$19.19

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Buy on Amazon — $19.19 Compare to similar expansion cards

By , Founder & Editor-in-Chief · Listing data updated

Mike Perry — Hardware researcher since 2014. For retro PC hardware and period-correct parts, synthesises manufacturer documentation, community compatibility lists and marketplace listings rather than first-hand lab testing. Core beat: GPU performance across gaming, rendering, and local-LLM inference.

*Price sourced from Amazon.com. Last updated 2026-10-06. Price and availability subject to change.

Pros & Cons

Pros

  • ✓ Intel I226-V chipset improves error rates and cable stability over the older I225-V
  • ✓ 2500/1000/100Mbps over standard RJ45 (802.3bz 2.5GBASE-T copper)
  • ✓ Low-profile bracket included; fits x1 through x16 PCIe slots
  • ✓ Broad OS support: Windows 10/11, Linux, ESXi 7.0, OpenWRT, Unraid, PVE
  • ✓ Supports PXE boot, full Wake on LAN and TSN

Cons

  • ✗ Ships as I225-V or I226-V; the older I225-V has weaker long-cable stability
  • ✗ Single-port card only, no multi-port option for busy home labs
  • ✗ Short 180-day warranty versus multi-year coverage on some rivals
  • ✗ Needs an open PCIe slot, so unusable in slotless mini PCs or laptops

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SpecPicks Verdict

SpecPicks scored ULANSeN PCIe 3.1 2.5GBase-T Network Adapter using a rating × review-volume × price-fit model applied to published specs and reviews across the expansion cards category. ULANSeN's expansion cards lineup sits within the broader category mid-tier; price and specs are the deciding factors over brand loyalty here. Judge it on the specification table and the price rather than on sentiment: check the figures that decide your use case, then put it side-by-side with two or three close alternatives in the Compare tool before clicking through.

Common buyer scenarios for expansion cards of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the retailer's listing before purchase. Prices and stock are set by the retailer and may have moved since this page was last updated.

Key Features

  • PCI Express 3.1 :5GT/s Support for x1 width (Lane).The I225-V has been discontinued, and the I226-V will replace it. The two models have identical functionality. Compared to the I225, the I226 has improved error rates, offering better data packet stability over longer cable lengths and providing a more stable network connection. It also enhances the accuracy and stability of data transmission. Additionally, the I226 reduces active power consumption compared to the I225, making it more energy-efficient
  • Network Interfaces:Integrated MAC + BASE-T PHY. MDI (Copper) standard IEEE 802.3 Ethernet interface for 2500BASE-T, 1000BASE-T, 100BASE-TX, and 10BASE-TE applications (802.3, 802.3u, 802.3bz, and 802.3ab)
  • Compatible for X1,X2,X4,X8,X16，Comes with low profile bracket
  • Support ESXI7.0/OPENWRT/UNRAID/PVE/WIN10/11/Linux.Support PXE function , Full Wake on LAN and TSN
  • 180 day worry-free warranty and friendly customer service. If you have any questions, we will help you solve the problem when you need it, and if it can’t be solved, we will provide a refund and no return is required.

Full Specifications

BrandULANSeN
ColorI225-Single Port
CompatibilityMac, Linux
Built-In Media1 x PCIe I225-V Single-2.5G Network card 1 x User’s Manual 1 x CD 1 x Low profile bracket
Number of Items1
Compatible DevicesDesktop
Data Transfer Rate2500 Megabits Per Second
Hardware InterfaceEthernet, PCI Express 3.0, PCI Express x1
Warranty Description1-YEAR Warranty
Item Dimensions L x W x H2.83"L x 2.17"W x 0.71"H
Full listing titlePCIe 3.1 2.5GBase-T Network Adapter with Intel I225-V / I226-V 2500/1000/100Mbps PCI Express Gigabit Ethernet NIC Card RJ45 LAN Controller for Windows 10/11 with Low Profile Bracket

Ready to buy?

PCIe 3.1 2.5GBase-T Network Adapter with Intel I225-V / I226-V 2500/1000/100Mbps PCI Express Gigabit Ethernet NIC Card RJ45 LAN Controller for Windows 10/11 with Low Profile Bracket is listed on Amazon. Price, availability, shipping and returns are set by Amazon and its sellers — check the listing for current terms. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.

Buy on Amazon — $19.19

*Price sourced from Amazon.com. Last updated 2026-10-06. Price and availability subject to change.

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PCIe 3.1 2.5GBase-T Network Adapter with Intel I225-V / I226-V 2500/1000/100Mbps PCI Express Gigabit Ethernet NIC Card RJ45 LAN Controller for Windows 10/11 with Low Profile Bracket
$19.19
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